How do you write the equation for the circle with center (6,-5) and radius r=4?
The standard form of the equation of a circle is.
where (a ,b) are the coordinates of the centre and r , the radius.
here a = 6 , b = -5 and r = 4
#rArr(x-6)^2+(y+5)^2=16" is the equation of circle"#